>> require 'mechanize/file_response' => true >> x = Mechanize::FileResponse.new("foo") => #<Mechanize::FileResponse:0xb7c72ce0 @file_path="foo"> >> x['content-type'] => nil >> x = Mechanize::FileResponse.new("foo.html") => #<Mechanize::FileResponse:0xb7c651f8 @file_path="foo.html"> >> x['content-typ…</mechanize::fileresponse:0xb7c651f8></mechanize::fileresponse:0xb7c72ce0>